{"source":"tc","country":"ca","campaign":"2001253","date":"2001-10-22","owner_notified":null,"manufacturer":null,"component":"Powertrain","summary":"Certain (4 wheel-drive) Trailblazer and GMC Envoy vehicle. The calibration of the active transfer case control module may cause insufficient high speed gear engagement. If the gear is not engaged, the vehicle can roll when the transmission is in \"park\" and a crash could result without warning. Correction: dealers are to reprogram the active transfer case control module (ATCM) calibration to increase gear engagement.","consequence":null,"remedy":null,"notes":null,"mfr_campaign":"01065","part_number":null,"units":4631,"completion":null,"do_not_drive":null,"park_outside":null,"notification":"Safety Mfr","french":{"component":"Groupe motopropulseur","notification":"Sécurité - fabricant","summary":"Sur certains véhicules utilitaires sport Trailblazer et GMC Envoy à quatre roues motrices, un mauvais étalonnage du module de commande de la boîte de transfert active peut faire en sorte que le pignon haute vitesse ne se mette pas complètement en prise. Si le pignon n'est pas bien engagé, le véhicule peut se déplacer inopinément même si la transmission est en position de stationnement (PARK) et un accident imprévisible peut se produire. Correction : Les concessionnaires devront reprogrammer le module de commande de la boîte de transfert active pour améliorer la prise du pignon haute vitesse."},"vehicles":[{"year":2002,"make":"CHEVROLET","model":"TRAILBLAZER","vehicle_id":"2002_chevrolet_trailblazer","match":"exact","built_from":null,"built_to":null},{"year":2002,"make":"GMC","model":"ENVOY","vehicle_id":"2002_gmc_envoy","match":"exact","built_from":null,"built_to":null}],"may_apply":true,"as_of":"2026-10-19","lookup":{"nhtsa":"https://www.nhtsa.gov/recalls","tc":"https://wwwapps.tc.gc.ca/Saf-Sec-Sur/7/VRDB-BDRV/search-recherche/menu.aspx?lang=eng","maker":null},"attribution":["Contains information licensed under the Open Government Licence – Canada."],"url":"https://open.wenmarpro.com/recalls/tc/2001253"}